Xianying Zhu, 45, of Flushing, N.Y. was arrested and charged with prostitution on Aug. 8 following an investigation by two patrol officers at Knights Inn of Pine Brook, Montville police said in a news release.

Patrol officers Keith Donnelly and Ian Jacobsen began to investigate Zhu, who was staying in one of the rooms at the Route 46 motel, after noticing men going into and coming out of her room, Lt. Andrew Caggiano said.

Donnelly and Jacobsen often patrol Route 46 so the Knights Inn is typically part of their patrol route, Caggiano said.

"They saw the traffic to and from the room and decided to investigate further," Caggiano said.

Caggiano said the officers observed the room "for a period of time" before interviewing Zhu. Zhu was arrested as a result of the officers' investigation, Caggiano said.

"I've got to give them credit," he said. "This was just good, old-fashioned police work."

She was later released on her own recognizance, Caggiano said.

None of the woman's alleged clients were arrested or charged, he said.